fix: keystore file not found exception (ReVanced#57)

* fix: keystore file not found exception

* the fix

* fix oopsies

Author: Itroublve

src/main/kotlin/app/revanced/cli/signing/Signing.kt

@@ -18,10 +18,9 @@ object Signing {
         // the reason is, in case the signer fails
         // it does not damage the output file
         println("[signing]")
-        val keyStore = Signer(signingOptions).signApk(alignedOutput, signedOutput)
+        Signer(signingOptions).signApk(alignedOutput, signedOutput)
 
-        // afterwards copy over the file and the keystore to the output
+        // afterwards copy over the file to the output
         signedOutput.copyTo(outputFile, true)
-        keyStore.copyTo(outputFile.resolveSibling(keyStore.name), true)
     }
 }

src/main/kotlin/app/revanced/utils/signing/Signer.kt

@@ -49,7 +49,7 @@ internal class Signer(
         return JcaX509CertificateConverter().getCertificate(builder.build(signer)) to pair.private
     }
 
-    fun signApk(input: File, output: File): File {
+    fun signApk(input: File, output: File) {
         Security.addProvider(BouncyCastleProvider())
 
         // TODO: keystore should be saved securely
@@ -74,7 +74,5 @@ internal class Signer(
         signer.setOutputApk(output)
 
         signer.build().sign()
-
-        return ks
     }
 }